Celery kept in the refrigerator for several days becomes limp why does this happen

Because celery has losen the cell turgidity.

Explanation:

Celery (Apium graveolens) belongs to the family Apiaceae, is a marshland plant. Celery is used as a salad and its extract is used fro the preparation of herbal medicine.

Celery when kept in refrigerator for several days becomes limp as celery lose its water content and become dehydrated. The cell turgidity has been lost and celery wilt.